Patents by Inventor Raluca Popescu

Raluca Popescu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190163050
    Abstract: A modeling technique is provided. The modeling technique includes inputting tool parameters into a model and inputting basic model parameters into the model. The technique further includes generating a simulated, corrected reticle design using the tool parameters and the basic model parameters. An image of test patterns is compared against the simulated, corrected reticle design. A determination is made as to whether ?1<?1, wherein ?1 represents model vs. exposure difference and ?1 represents predetermined criteria. The technique further includes completing the model when ?1<?1.
    Type: Application
    Filed: January 31, 2019
    Publication date: May 30, 2019
    Inventors: Jacek TYMINSKI, Raluca POPESCU, Tomoyuki MATSUYAMA
  • Patent number: 10234756
    Abstract: A modeling technique is provided. The modeling technique includes inputting tool parameters into a model and inputting basic model parameters into the model. The technique further includes generating a simulated, corrected reticle design using the tool parameters and the basic model parameters. An image of test patterns is compared against the simulated, corrected reticle design. A determination is made as to whether ?1<?1, wherein ?1 represents model vs. exposure difference and ?1 represents predetermined criteria. The technique further includes completing the model when ?1<?1.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: March 19, 2019
    Assignees: NIKON CORPORATION, NIKON PRECISION INC.
    Inventors: Jacek Tyminski, Raluca Popescu, Tomoyuki Matsuyama
  • Publication number: 20170363951
    Abstract: A modeling technique is provided. The modeling technique includes inputting tool parameters into a model and inputting basic model parameters into the model. The technique further includes generating a simulated, corrected reticle design using the tool parameters and the basic model parameters. An image of test patterns is compared against the simulated, corrected reticle design. A determination is made as to whether ?1<?1, wherein ?1 represents model vs. exposure difference and ?1 represents predetermined criteria. The technique further includes completing the model when ?1<?1.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 21, 2017
    Inventors: Jacek TYMINSKI, Raluca POPESCU, Tomoyuki MATSUYAMA
  • Patent number: 9753363
    Abstract: A modeling technique is provided. The modeling technique includes inputting tool parameters into a model and inputting basic model parameters into the model. The technique further includes generating a simulated, corrected reticle design using the tool parameters and the basic model parameters. An image of test patterns is compared against the simulated, corrected reticle design. A determination is made as to whether ?1<?1, wherein ?1 represents model vs. exposure difference and ?1 represents predetermined criteria. The technique further includes completing the model when ?1<?1.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: September 5, 2017
    Assignees: NIKON CORPORATION, NIKON PRECISION INC
    Inventors: Jacek Tyminski, Raluca Popescu, Tomoyuki Matsuyama
  • Patent number: 9529253
    Abstract: A method for predicting pattern critical dimensions in a lithographic exposure process includes defining relationships between critical dimension, defocus, and dose. The method also includes performing at least one exposure run in creating a pattern on a wafer. The method also includes creating a dose map. The method also includes creating a defocus map. The method also includes predicting pattern critical dimensions based on the relationships, the dose map, and the defocus map.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: December 27, 2016
    Assignee: NIKON PRECISION INC.
    Inventors: Jacek K. Tyminski, Raluca Popescu
  • Publication number: 20160161842
    Abstract: A modeling technique is provided. The modeling technique includes inputting tool parameters into a model and inputting basic model parameters into the model. The technique further includes generating a simulated, corrected reticle design using the tool parameters and the basic model parameters. An image of test patterns is compared against the simulated, corrected reticle design. A determination is made as to whether ?1<?1, wherein ?1 represents model vs. exposure difference and ?1 represents predetermined criteria. The technique further includes completing the model when ?1<?1.
    Type: Application
    Filed: February 11, 2016
    Publication date: June 9, 2016
    Inventors: Jacek TYMINSKI, Raluca POPESCU, Tomoyuki MATSUYAMA
  • Patent number: 9286416
    Abstract: A modeling technique is provided. The modeling technique includes inputting tool parameters into a model and inputting basic model parameters into the model. The technique further includes generating a simulated, corrected reticle design using the tool parameters and the basic model parameters. An image of test patterns is compared against the simulated, corrected reticle design. A determination is made as to whether ?1<?1, wherein ?1 represents model vs. exposure difference and ?1 represents predetermined criteria. The technique further includes completing the model when ?1<?1.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 15, 2016
    Assignees: NIKON CORPORATION, NIKON PRECISION INC.
    Inventors: Jacek Tyminski, Raluca Popescu, Tomoyuki Matsuyama
  • Publication number: 20130339910
    Abstract: A method for predicting pattern critical dimensions in a lithographic exposure process includes defining relationships between critical dimension, defocus, and dose. The method also includes performing at least one exposure run in creating a pattern on a wafer. The method also includes creating a dose map. The method also includes creating a defocus map. The method also includes predicting pattern critical dimensions based on the relationships, the dose map, and the defocus map.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicant: Nikon Precision Inc.
    Inventors: Jacek K. TYMINSKI, Raluca POPESCU
  • Patent number: 8572518
    Abstract: A method for predicting pattern critical dimensions in a lithographic exposure process includes defining relationships between critical dimension, defocus, and dose. The method also includes performing at least one exposure run in creating a pattern on a wafer. The method also includes creating a dose map. The method also includes creating a defocus map. The method also includes predicting pattern critical dimensions based on the relationships, the dose map, and the defocus map.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: October 29, 2013
    Assignee: Nikon Precision Inc.
    Inventors: Jacek K. Tyminski, Raluca Popescu
  • Patent number: 8365107
    Abstract: A modeling technique is provided. The modeling technique includes inputting tool parameters into a model and inputting basic model parameters into the model. The technique further includes generating a simulated, corrected reticle design using the tool parameters and the basic model parameters. An image of test patterns for an integrated circuit is compared against the simulated, corrected reticle design. A determination is made as to whether a difference between the simulated, corrected reticle design and exposure results of the image of the test patterns (?1) is less than a predetermined criteria (?1). The technique further includes completing the model the difference between the simulated, corrected reticle design and the exposure results of the image of the test patterns is less than the predetermined criteria.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: January 29, 2013
    Assignees: Nikon Corporation, Nikon Precision Inc.
    Inventors: Jacek Tyminski, Raluca Popescu, Tomoyuki Matsuyama
  • Publication number: 20120331427
    Abstract: A method for predicting pattern critical dimensions in a lithographic exposure process includes defining relationships between critical dimension, defocus, and dose. The method also includes performing at least one exposure run in creating a pattern on a wafer. The method also includes creating a dose map. The method also includes creating a defocus map. The method also includes predicting pattern critical dimensions based on the relationships, the dose map, and the defocus map.
    Type: Application
    Filed: December 7, 2011
    Publication date: December 27, 2012
    Applicant: NIKON PRECISION INC.
    Inventors: Jacek K. TYMINSKI, Raluca POPESCU
  • Publication number: 20100058263
    Abstract: A modeling technique is provided. The modeling technique includes inputting tool parameters into a model and inputting basic model parameters into the model. The technique further includes generating a simulated, corrected reticle design using the tool parameters and the basic model parameters. An image of test patterns is compared against the simulated, corrected reticle design. A determination is made as to whether ?1<?-1, wherein ?1 represents model vs. exposure difference and ?-1 represents predetermined criteria. The technique further includes completing the model when ?1<?-1.
    Type: Application
    Filed: January 16, 2008
    Publication date: March 4, 2010
    Applicants: NIKON PRECISION INC.
    Inventors: Jacek Tyminski, Raluca Popescu, Tomoyuki Matsuyama